Event(s) UNIT_SPELLCAST_* documentation
 

I'm trying to get Skillet-Classic (port of Skillet from retail) to work and when I execute DoTradeSkill(skill,count) I can see from /eventtrace that a series of UNIT_SPELLCAST_* events happen but the arguments are different than retail so I need to adjust my event handlers to match.

Is there any documentation available that might be useful?